ISL6322 INTERSIL [Intersil Corporation], ISL6322 Datasheet - Page 8

• Manufacturer Part Number: ISL6322
• Description: Four-Phase Buck PWM Controller with Integrated MOSFET Drivers and I2C Interface for Intel VR10, VR11, and AMD Applications
• Manufacturer: INTERSIL [Intersil Corporation]

Electrical Specifications
REFERENCE AND DAC
System Accuracy (1.000V - 1.600V)
System Accuracy (0.600V - 1.000V)
System Accuracy (0.375V - 0.600V)
DAC Input Low Voltage (VR10, VR11)
DAC Input High Voltage (VR10, VR11)
DAC Input Low Voltage (AMD)
DAC Input High Voltage (AMD)
PIN-ADJUSTABLE OFFSET
OFS Sink Current Accuracy (Negative Offset)
OFS Source Current Accuracy (Positive Offset)
ERROR AMPLIFIER
DC Gain
Gain-Bandwidth Product
Slew Rate
Maximum Output Voltage
Minimum Output Voltage
SOFT-START RAMP
Soft-Start Ramp Rate
Adjustment Range of Soft-Start Ramp Rate (Note 3)
PWM OUTPUT
PWM Output Voltage LOW Threshold
PWM Output Voltage HIGH Threshold
CURRENT SENSING
Current Sense Resistance, R
Sensed Current Tolerance
OVERCURRENT PROTECTION
Overcurrent Trip Level - Average Channel
Overcurrent Trip Level - Individual Channel
PROTECTION
Undervoltage Threshold
Undervoltage Hysteresis
Overvoltage Threshold During Soft-Start
Overvoltage Threshold (Default)
Overvoltage Threshold (Alternate)
PARAMETER
ISEN
8
Recommended Operating Conditions, Unless Otherwise Specified. (Continued)
R
R
R
C
C
Load = 1mA
Load = -1mA
VR10/VR11, R
AMD
Iload = ±500μA
Iload = ±500μA
T = 25°C
ISEN1+ = ISEN2+ = ISEN3+ = ISEN4+ = 80μA
Normal operation
Dynamic VID change
Normal operation
Dynamic VID change (Note 3)
VSEN falling
VSEN rising
VR10/VR11
AMD
VSEN rising
VSEN rising
OFS
OFS
L
L
L
= 10k to ground, (Note 3)
= 100pF, R
= 100pF, Load = ±400μA, (Note 3)
= 10kΩ from OFS to GND
= 30kΩ from OFS to VCC
ISL6322
ISL6322
L
S
TEST CONDITIONS
= 10k to ground, (Note 3)
= 100kΩ
VDAC +
VDAC +
225mV
150mV
0.625
209.4
37.0
50.5
3.90
1.24
2.13
MIN
-0.5
-1.0
-2.0
297
143
150
110
0.8
1.0
4.5
76
55
VDAC +
VDAC +
250mV
175mV
1.563
2.063
TYP
40.0
53.5
4.20
1.30
1.28
2.20
300
125
163
177
238
96
20
80
60
10
8
VDAC +
VDAC +
275mV
200mV
266.6
MAX
1.32
43.0
56.5
6.25
2.27
303
140
183
204
0.5
1.0
2.0
0.4
0.6
1.5
0.5
84
65
August 21, 2006
UNITS
FN6328.0
mV/µs
mV/µs
mV/µs
%VID
%VID
MHz
V/μs
μA
μA
dB
μA
μA
μA
μA
μA
%
%
%
Ω
V
V
V
V
V
V
V
V
V
V
V
V